Cause, Apple would lose if Psystar was just buying copies of Leopard and selling them to customers. Weird business model too, unless you got some kind of bulk deal. Or if Apple tried to stop Psystar from selling used Macs with system disks and all.

The Apple-Psystar is already much more complicated, involving hardware, third party software used to install Leopard, copyright/trademark questions, modification to software, and so on. I just don't see the similarity.